340KHz Synchronous Step-Down DC/DC Converter
FR9888C 23V, 3.5A, 340KHz Synchronous Step-Down DC/DC Converter
FEATURES
High Efficiency up to 96% Low Rds(on) Integrat...
Description
FR9888C 23V, 3.5A, 340KHz Synchronous Step-Down DC/DC Converter
FEATURES
High Efficiency up to 96% Low Rds(on) Integrated Power MOSFET Wide Input Voltage Range: 4.5V to 23V Adjustable Output Voltage Range: 0.925V to 20V Fixed 340KHz Switching Frequency Adjustable Soft-Start Cycle-by-Cycle Current Limit Input Under Voltage Lockout Over-Temperature Protection with Auto Recovery <1µA Shutdown Current
TYPICAL APPLICATION CIRCUIT
PIN DESCRIPTION
NAME SOP8
DESCRIPTION
BST
1 High Side Gate Drive Boost
VIN 2 Power Supply Input Pin
LX 3 Power Switching Output
GND
4,9
Ground
TYPICAL APPLICATION FB
5 Voltage Feedback Input
Set-Top-Box (STB)
COMP
6
Compensation Pin
Television
SHDN
7
Enable Input
Distributed Power System
SS
8
Soft-Start
XDSL Modem
PACKAGE
14 、、
...
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